SurfaceDiff vs Wallarm API Security: side-by-side comparison (2026)
SurfaceDiff is a commercial external attack surface management solution by SurfaceDiff. Wallarm API Security is a commercial API security solution by Wallarm. Features, integrations, deployment and the company behind each one, side by side.
Our take
What our shortlists say about the one we picked.
- Wallarm API Security
Best for: Teams wanting inline API blocking without specifications
Wallarm earns its place because it can start blocking before your APIs are documented, which helps when your specs lag behind the code. It runs hybrid, so you can put the filtering where your traffic is. Before you choose it, test its blocking modes on your busiest APIs, because a wrong block there lands on real users.
From Best API Security Solutions for Business, Fall 2026
Reviewed by Nika (Nikoloz) Kokhreidze.
Continuous external attack surface monitoring that shows what changed between scans.
Inline API discovery and protection platform blocking attacks, abuse, and ATO.
Side-by-side comparison
Feature
SurfaceDiff
Wallarm API Security
Pricing model
Commercial
Commercial
Category
External Attack Surface Management
API Security
Deployment and fit
Deployment type
Cloud
Hybrid
Company size fit
Startup, SMB, Mid-Market, Enterprise
SMB, Mid-Market, Enterprise
Company
Company
SurfaceDiff
Wallarm
Use cases and capabilities
DNS Security
Yes
No
Port Scanning
Yes
No
TLS
Yes
No
Subdomain Enumeration
Yes
No
Network Scanning
Yes
No
Security Scanning
Yes
No
Alerting
Yes
No
Reconnaissance
Yes
No
Visibility
Yes
No
Web Security
Yes
No
Bot Protection
No
Yes
DDoS
No
Yes
OWASP
No
Yes
Serverless
No
Yes
Kubernetes
No
Yes
Core features
9 features listed
10 features listed
Integrations
No integrations listed
21 integrations listed
Need help choosing?
See more solutions in this category, or build a security stack from your picks.
